Guide to selection

Terminologies & Explanations

Please note most suspension development has been carried out on Australian specification models.Therefore, some differences may exist between the same model in another country. Overseas customers willneed to make allowances for these possible differences.

Supplying all items shown on suspension selection charts will ensure the system can be fitted, however, there will be vehicles which will not require allitems, eg. Trimming kits, caster kits, all U bolts shown, etc. Actual, individual vehicle requirements can only be determined when the suspensionsystem is fitted.

GVM - GROSS VEHICLE MASS: Set by the vehicle manufacturer and is determined by brake, axle, differential and tyrespecifications. Exceeding GVM ratings can have legal and safety implications and is not recommended.

LIFT HEIGHT: Is shown as a guide only and equates to the amount of lift over the vehicles original ride height. Thisamount can vary from vehicle to vehicle.

OE: Original Equipment, as supplied by the manufacturer of the vehicle.

SHOCK ABSORBERS: Where two part numbers are given for the same application the part with the asterisk (*)indicates the shock absorber with the firmer ride.

SPRING BUSH: OME polyurethane spring eye bushes on installation must only be greased in the bore and on theflange area and regularly thereafter with OME polyurethane grease.

STEERING STABILISER: Designed as a larger capacity replacement for the OE part and incorporates 50/50 neutralvalving.

CASTER KIT: The OMECA77B, CALR1 and CALR2 kits consist of 4 eccentric bushes which are pressed into theleading arms of the vehicle. This will induce positive caster into the front geometry.

LEAF SPRINGS: A & B springs can be used to compensate for uneven vehicle weight distribution. Springs marked "A"have a greater camber height than springs marked B. A type springs are generally fitted to the drivers side and Bsprings to the passenger side.

COIL SPRINGS: A & B springs are used to compensate for uneven vehicle weight distribution. A type springs aregenerally higher in free high than the B spring. Individual coil specifications are listed in the back of this publication.

GEARBOX PACKER KIT: Designed to space down the gearbox cross member from the chassis to reduce tail shaftflange angle thereby reducing driveline vibration.

TRIM PACKERS: The prime purpose of a trim packer is to correct slight vehicle leaning.VEHICLES WITH LEAF SPRINGS UNDER SLUNG: Trim packer when fitted will reduce suspension height.VEHICLES WITH LEAF SPRINGS OVER SLUNG: Trim packer when fitted will increase suspension height.VEHICLES WITH COIL SPRINGS: Polyurethane trim packer main purpose is to correct slight vehicletrimming problems and will increase ride height when fitted.